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JSON Formatter & Validator

Pretty-print, minify, and validate tag config JSON, GA4 measurement-protocol payloads, GTM container exports, and Meta CAPI request bodies.

Indent

All processing is local — your payload never leaves the browser.

Valid JSON

127 bytes · 7 keys

Pretty

{
  "event": "purchase",
  "ecommerce": {
    "transaction_id": "ORD_98765",
    "value": 158,
    "items": [
      {
        "item_id": "SKU_1",
        "item_name": "Sweater"
      }
    ]
  }
}

Minified

{"event":"purchase","ecommerce":{"transaction_id":"ORD_98765","value":158,"items":[{"item_id":"SKU_1","item_name":"Sweater"}]}}

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